6. It is known that the tensile strength of a plastic increases as a function of the time it is heat treated. The following data are collected: Time 10 15 20 25 40 50 55 60 75 Tensile strength 5 20 18 40 33 54 70 60 78 (a) Fit a straight line to these data and use the equation to determine the tensile strength at a time of 32min. (b) Determine the coefficient of determination, standard deviation and the standard error of estimate.
6. It is known that the tensile strength of a plastic increases as a function of the time it is heat treated. The following data are collected: Time 10 15 20 25 40 50 55 60 75 Tensile strength 5 20 18 40 33 54 70 60 78 (a) Fit a straight line to these data and use the equation to determine the tensile strength at a time of 32min. (b) Determine the coefficient of determination, standard deviation and the standard error of estimate.
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.6: The Inverse Trigonometric Functions
Problem 94E
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